Cationic polymerization of glycidyl phenyl ether initiated by various arylsulfonium salts as new thermal latent cationic initiators

Tritylium ions as initiators and co-initiators in cationic polymerizations

On the other hand, the less stabilized tris(4chlorophenyl)methyl cation (1 b) was reported to initiate the polymerization of isobutene3). In accordance, p-methoxy and p-methyl substituted tritylium ions do not initiate the polymerization of a-methylstyrene, in contrast to the less stable 1 a and 1 b4). Only for few reactive monomers, however, the initiation was proven to proceed via addition of...

Cationic polymerization of glycidyl ethers and furans: improved electron beam and UV cured epoxy networks

Glycosylation initiated cationic ring-opening polymerization of tetrahydrofuran to prepare neo-glycopolymers.

An unprecedented and highly efficient glycosylation initiated cationic ring-opening polymerization (CROP) of tetrahydrofuran is disclosed employing glycosyl ortho-hexynylbenzoates as donors and gold(I) as a catalyst, that provides an easy access to novel glycopolymers which could self-assemble into nanostructures.

UV-Initiated Polymerization of Cationic Polyacrylamide: Synthesis, Characterization, and Sludge Dewatering Performance

P(AM-DAC-BA) was synthesized through copolymerization of acrylamide (AM), acryloyloxyethyl trimethyl ammonium chloride (DAC), and butylacrylate (BA) under ultraviolet (UV) initiation using response surface methodology (RSM). The influences of light intensity, illumination time, and photoinitiator concentration on the intrinsic viscosity [η] of P(AM-DAC-BA) were investigated. RSM model based on ...

Preparation of cationic polyacrylamide by aqueous two-phase polymerization

Cationic polyacrylamide (CPAM) was synthesized by aqueous two-phase polymerization technique using acrylamide (AM) and dimethylaminoethyl methacrylate methyl chloride (DMC) as raw materials, aqueous polyethylene glycol 20000 (PEG 20000) solution as dispersant, 2,2′-azobis(2-amidinopropane) dihydrochloride (V-50) as initiator and poly(dimethylaminoethyl methacrylate methyl chloride) (PDMC) as st...